Bio-efficacy of Long Lasting Insecticidal Mosquito Nets (LLINs) on Malaria Vector Anopheles Mosquitoes in Malaria-Endemic Areas of Myanmar
Journal Title: JOURNAL OF BIOLOGICAL ENGINEERING RESEARCH AND REVIEW - Year 2019, Vol 6, Issue 1
Abstract
Sixty used Long Lasting Insecticidal Nets (LLINs) from six malaria endemic areas of States and Regions of Myanmar were assessed for their bio-efficacy against Anopheles mosquitoes. Total ten nets were collected from the randomly selected household of each area. Insecticide susceptibility and bio-efficacy test were done according to WHO testing method. Results revealed that a total of 4470 mosquitoes of 12 Anopheles species including main vector and secondary vectors were collected in high density in Beelin, Taungoo, Pyin Oo Lwin, Kamamaung and Hpa-an. All collected mosquitoes were found susceptible to insecticides as recommended by the WHO. Bioefficacy of PermaNet 2.0, DAWA TANA, Yorkool, BASF, Net protect and Yahe LLINs nets were 12(100%), 11/12(91.67%), 4(100%), 8(100%), 5(100%) and 19(100%) respectively. The DAWA TANA net had 20% sensitivity after repetitive washing. The sensitivity of LLINs nets was higher for all selected areas of States and Regions in Myanmar. The study suggested that there is need to distribute a large number of effective LLINs nets in malaria endemic areas as well as the replacement of expired, less effective and very old LLINs nets with a new one is also necessary. LLINs nets are very effective Anopheles mosquitoes control tools and it can reduce the human-vector contact effectively. Moreover, research on bio-efficacy evaluations of the LLINs nets is required regularly to maintain and control the transmission of malaria through Anopheles mosquitoes.
Authors and Affiliations
Maung Maung Mya, Sein Thaung, Yee Yee Myint, Thu Zar Nyein Mu, Yan Naung Maung, Moh Moh Tun, Khin Saw Aye, Kyaw Zin Thant
Keywords
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